fix: add err return to srv's Close() method

service/service.go

@@ -24,7 +24,7 @@ type IService interface {
 
 	Tags() map[string]struct{}
 
-	Close()
+	Close() error
 }
 
 // TODO split address field to host and port
@@ -85,7 +85,9 @@ func (n *BaseService) Tags() map[string]struct{} {
 	return n.tags
 }
 
-func (n *BaseService) Close() {}
+func (n *BaseService) Close() error {
+	return nil
+}
 
 // generateServiceID create BaseService unique id by
 // hashing given address string

services_list.go

@@ -320,7 +320,10 @@ func (l *ServicesList) RemoveFromHealthyByIndex(i int) {
 	l.mu.Lock()
 	defer l.mu.Unlock()
 
-	l.healthy[i].Close()
+	if err := l.healthy[i].Close(); err != nil {
+		logger.Log().Warn(fmt.Errorf("unexpected error during service Close(): %w", err).Error())
+	}
+
 	l.healthy = append(l.healthy[:i], l.healthy[i+1:]...)
 }
 
@@ -330,7 +333,10 @@ func (l *ServicesList) RemoveFromJail(srv service.IService) {
 	defer l.mu.Unlock()
 	l.mu.Lock()
 
-	srv.Close()
+	if err := srv.Close(); err != nil {
+		logger.Log().Warn(fmt.Errorf("unexpected error during service Close(): %w", err).Error())
+	}
+
 	delete(l.jail, srv.ID())
 }